Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006pasj...58..703t&link_type=abstract
Publications of the Astronomical Society of Japan, Vol.58, No.4, pp.703-718
Astronomy and Astrophysics
Astronomy
7
Galaxies: Clusters: General, Galaxies: Clusters: Individual (2A 0335+096, Abell 496), Galaxies: Intergalactic Medium, X-Rays: Galaxies: Clusters
Scientific paper
We present the XMM-Newton results of the galaxy clusters 2A 0335+096 and A496. From an investigation of 2-dimensional ICM profiles, we obtained new features related to dynamical activities in the ICM. In 2A 0335+096, we found a spiral cool tail around the central cold core, which is trailing from the opposite side of the cold front observed by Chandra. The deprojected temperature of the tail is 1.7keV. The spiral feature apparently shows a turnaround motion of the core. We suggest that the cool tail feature represents evidence for turbulent viscous stripping of the remaining subcluster core. For A496, we found another cold front 4' south of the X-ray emission peak. From the pressure profile across the cold front, we derived an upper limit to the Mach number of a gas body of 0.2. Regarding the temperature distribution in the outer region, we found non-uniformity on the cluster scale for both clusters, which suggests that both clusters experienced a merger in the past. We argue that the gas dynamical motions seen in the central regions of both clusters can be attributed to the past merger.
Furuzawa Akihiro
Hudaverdi Murat
Kunieda Hideyo
Tanaka Takeshi
Tawara Yuzuru
No associations
LandOfFree
Non-Uniform Temperature Distribution in the Galaxy Clusters 2A 0335+096 and Abell 496 Observed by XMM-Newton does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Non-Uniform Temperature Distribution in the Galaxy Clusters 2A 0335+096 and Abell 496 Observed by XMM-Newton, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-Uniform Temperature Distribution in the Galaxy Clusters 2A 0335+096 and Abell 496 Observed by XMM-Newton will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1104972